package org.sbear.service;

import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.ChannelPipeline;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.nio.NioServerSocketChannel;
import io.netty.channel.socket.nio.NioSocketChannel;
import io.netty.handler.codec.string.StringEncoder;
import org.sbear.handler.UserServiceHandler;
import org.sbear.pojo.RpcRequest;
import org.sbear.serivice.UserService;
import org.sbear.util.JSONSerializer;
import org.sbear.util.RpcDecoder;
import org.springframework.stereotype.Service;

import java.text.SimpleDateFormat;
import java.util.Date;


/**
 * @author xxyWi
 */
@Service("UserService")
public class UserServiceImpl implements UserService {
    /**
     * 客户端远程要调用的方法
     *
     * @param msg
     * @return
     */
    @Override
    public String sayHello(String msg) {
        SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        String date = format.format(new Date());
        System.out.println(date + "  调用成功--参数 " + msg);
        return date + "  success to receive:" + msg;
    }


    /**
     * 创建一个方法启动服务器
     *
     * @param hostName
     * @param port
     */
    public static void startServer(String hostName, int port) throws InterruptedException {
        //1.创建两个线程池对象
        NioEventLoopGroup bossGroup = new NioEventLoopGroup();
        NioEventLoopGroup workGroup = new NioEventLoopGroup();

        //2.创建服务端的启动引导对象
        ServerBootstrap serverBootstrap = new ServerBootstrap();
        //3.配置启动引导对象
        serverBootstrap.group(bossGroup, workGroup)
                //设置通道为NIO
                .channel(NioServerSocketChannel.class)
                //创建监听channel
                .childHandler(new ChannelInitializer<NioSocketChannel>() {
                    @Override
                    protected void initChannel(NioSocketChannel nioSocketChannel) throws Exception {
                        //获取管道对象
                        ChannelPipeline pipeline = nioSocketChannel.pipeline();
                        //给管道对象pipeLine 设置编码
                        pipeline.addLast(new StringEncoder());
                        //pipeline.addLast(new RpcEncoder(RpcRequest.class, new JSONSerializer()));
                        pipeline.addLast(new RpcDecoder(RpcRequest.class, new JSONSerializer()));
                        //把我们自顶一个ChannelHander添加到通道中
                        pipeline.addLast(new UserServiceHandler());
                    }
                });
        //4.绑定端口
        serverBootstrap.bind(hostName, port).sync();
    }
}
